| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d75f15b1b6d64fa530b17a190f71c981
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4b13607467b52577e553bb2ad06e24c8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_05123e7f355e957ecfb82e646bb0773c |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2030-965
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2030-567
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2220-84
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-96 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-286
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D15-367
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-3242
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-6078
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-3208
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J41-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J39-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D15-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D15-206
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J47-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D15-363
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D15-362 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D15-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D15-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D15-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-286
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J41-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J47-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J39-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-96 |
| filingDate |
2020-09-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b34005f69cd618ca13961f3b97ad50e1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_795fdc76010e110302864eeff444ea0b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d42108cf56c4b1cf077d2d5a8400195c |
| publicationDate |
2022-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-11400444-B2 |
| titleOfInvention |
Functionalized polyolefin capillaries for open tubular ion chromatography |
| abstract |
Open tubular capillary columns for liquid and ion chromatography, based upon an ionically impermeable polyolefin capillary having a bore with a sulfonate-group- or amine-group-functionalized internal surface. The capillary columns may include a coating of ion exchanging nanoparticles electrostatically bound to the functionalized internal surface. The capillary columns may be made by exposing the interior surface to a sulfonating reagent comprising chlorosulfonic acid (ClSO3H), preferably from 85 wt % to 95 wt % chlorosulfonic acid at a process temperature of 20 to 25° C. The interior surface may be subsequently exposed to an asymmetrical diamine to form a sulfonic mid-linkage to the diamine, i.e., to form a sulfonamide-linked, amine-group-functionalized internal surface. The coating may be provided by subsequently exposing the interior surface to an aqueous suspension of ion exchanging nanoparticles to electrostatically bond the ion exchanging nanoparticles to the functionalized internal surface. |
| priorityDate |
2016-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |